Remove aux cable and no sound via phone until app is ended.Multiple apps don't open properly, freeze on launch screen for 20 seconds or more, seems to work again after phone sorts itself out.Alarm is silent when phone is in silent mode, no fix yet.
Bluetooth makes life easy and you can share files on your i Device with others freely, or just connect to your Car to answer phones and play songs.
In fact, allowing all your apps to continually update and refresh in the background is a sure-fire way to drain your i Phone battery.
To turn off Background App Refresh Open settings and tap General, then select background App Refresh, just toggle it off.
Potential Solutions: Turning off the Raise to Wake feature has been said to help some users.
To do this, go to Settings , then tap Display & Brightness and toggle off Raise to Wake to disable the feature.
I am using an i Phone 6 and wifi would only connect if I am centimeters near the router... My advice, as always, is that if you rely on your i Phone or i Pad and don't want to be inconvenienced by problems, hold off upgrading for a few weeks until Apple gets a few updates out and things calm down.